Family Leiopelmatidae is a taxonomic grouping of primitive frogs that are found only in New Zealand. These unique amphibians are also known by several different synonyms, including the New Zealand frog or the native frog. They are recognized by their flat, streamlined bodies and small eyes. Despite their classification as a frog family, they lack a vocal sac and do not croak like other frogs. Some other synonyms for the Family Leiopelmatidae include the Archey's frog, Hochstetter's frog, and Hamilton's frog. These terms have been used to describe specific species within the family, each with their own unique characteristics and habitats.